Process of making drying-oils.



1 K li 'T' WALTER DYER AND WALTER EATON DYER, 0F PORTLAND, OREGON.

rzaocnss or MAKI G, DRYING-OILS. J

No Drawing.

To all whom it may concern:

Be it known'that we, WALTER DYER and WALTER EATON DYER, both subjects of the King of Great Britain, residing at Portland, in the county of Multnomah and State of Oregon, have invented certain new and useful Improvements in Processes of Making Drying-Oils; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to improvements in the treating of non-drying or semidrying oils, whereby the same are rendered suitable for use as paint oils, and subsequently mixing therewith other materials necessary for the production of paint, such as pigments, driers and the like, with or without other paint oils.

The present invention relates more particularly to the treatment of such oils as cottonseed, soy bean, corn, rape, .nut and other fatty oils which possess either no drying properties, or which. possess drying properties'insuflicient to render the same suitable directly as paint oils.

The treatment of the oil is preferably conducted as follows: To a given quantity of the oil, we add about 5 to 10% of alcohol, which may be ordinary grain alcohol or denatured alcohol or wood alcohol: The mixture is then heated to the boiling point and is boiled for a period of about 30 minutes.

Specification of Letters Patent.

Patented Feb.19,1918.

' Application filed April 12, 1917. Serial No. 161,525.

The time of boiling will be governed to a certain extent by the properties desired in the product, particularly as regards the speed of drying. The long boiling increases .the drying properties of the oil in question.

, After boiling for about half an hour, the pigments, driers and the like are added in the ordinary manner, and a paint is thereby produced, possessing good drying properties. The oil after the addition of alcohol and boiling, is found to possess drying properties equal to or superior to the best boiled linseed oil.

What We claim is:

1'. The process of treating fatty oils deficient in drying properties, which comprises adding thereto a relatively smaller quantity of alcohol and boiling, the mixture for a suflicient time to produce a readily drying oil.

2. A process of making a drying oil from so-called non-drying and semidrying fatty oils, which comprises adding to a bulk of such oil, a relatively smaller amount of alcohol and boiling the mixture until an oil of good drying properties is produced.

In testimony whereof we have hereunto set our hands in the presence of two subscribing witnesses.

Q WALTER DYER.

WALTER EATON DYER.

Witnesses:

E ERETT A. JoHNsoN, MARY LAIDLAW. 

